If you’ve been to the Valle Crucis Community Park this
summer you may be wondering why the water level in the park’s pond has been
falling. This intentional lowering of the pond’s water level marks the
beginning of a two-year project to convert the man-made pond into a natural wetland
habitat.
For over 20 years, the constructed pond received a constant
flow of water from the Watauga River. Unfortunately, this was not healthy for
the river. Cold water from the river flowed into the pond and heated up, and
then that warm pond water flowed back into the Watauga River. The river
supports trout and other species that need cold water to survive and, according
to Wendy Patoprsty, Watauga County Extension Agent, thermal pollution is one of
the main issues impacting Western North Carolina trout streams. With increased
development, excess stormwater runoff, and decreased stream bank vegetation,
stream temperatures are at their height by mid-summer and many areas are unable
to support wildlife dependent on cold water.
In 2007, the river
was cut off from the pond during a stream bank restoration project. This was a
good step to protect aquatic life in the river, but negatively impacted the
pond. Without the river
water flowing into the pond, the water gets very stagnant and smelly, and aggressive
invasive species have been choking out plant diversity. “For the past few years
we’ve been actively removing invasive plants and replanting with native species,”
says Bon-Scott Hartwig, Maintenance Director at Valle Crucis Community Park.
Caroline Gandy, the park’s Executive Director, has a vision
of increasing habitat diversity and wildlife populations within the Valle
Crucis Community Park, stating that “this pond conversion will serve a valuable
ecological function for not only bird migration but also amphibians in the
floodplain corridor.”
The next step in the project will be the installation of
native wetland plants such as arrow arum, swamp hibiscus, cardinal flower,
pickerel weed, duck potato, and native rushes and sedges to create a natural
design and patterns of color and textures. The High Country Audubon has been
very supportive of this project because many of the plant species that will be
incorporated are excellent bird habitat.
Wetlands are incredibly important ecosystems that provide
habitat for many species of birds, plants, amphibians, mammals, reptiles, and
insects while also keeping our water clean and helping to store floodwater. According
to the US Environmental Protection Agency, the lower 48 states contained over
220 million acres of wetlands in the 1600s. In 2009, surveys found only 110.1
million acres of wetlands, the result of hundreds of years of filling wetlands
to make room for farming and development.
For more information, or if you’re interested in helping
with planting this summer, please contact Wendy Patoprsty at the Watauga County
Cooperative Extension at 828-264-3061.